Table 1.
Class | Peptide | Gene | Species | Producing Cells | Reference(s) | Amino Acid Sequence* |
---|---|---|---|---|---|---|
α-defensins | HNP-1 | DEFA1 | Human | Azurophilic granules of neutrophil granulocytes | (14) | AC1YC2RIPAC3IAGERRYGTC2IYQGRLWAFC3C1 |
HNP-2 | DEFA1 | Human | C1YC2RIPAC3IAGERRYGTC2IYQGRLWAFC3C1 | |||
HNP-3 | DEFA3 | Human | DC1YC2RIPAC3IAGERRYGTC2IYQGRLWAFC3C1 | |||
HNP-4 | DEFA4 | Human | VC1SC2RLVFC3RRTELRVGNC2LIGGVSFTYC3C1TRV | |||
HD-5 | DEFA5 | Human | Paneth cells in small intestine and female urogenital tract | (15, 16) | ATC1YC2RTGRC3ATRESLSGVC2EISGRLYRLC3C1R | |
HD-6 | DEFA6 | Human | AFTC1HC2RRSC3YSTEYSYGTC2TVMGINHRFC3C1L | |||
β-defensins | HBD-1 | DEFB1 | Human | Epithelial cells, monocytes, macrophages and dendritic cells | (11, 17) | DHYNC1VSSGGQC2LYSAC3PIFTKIQGTC2YRGKAKC1C3K |
HBD-2 | DEFB4 | Human | GIGDPVTC1LKSGAIC2HPVFC3PRRYKQIGTC2GLPGTKC1C3KKP | |||
HBD-3 | DEFB103 | Human | GIINTLQKYYC1RVRGGRC2AVLSC3LPKEEQIGKC2STRGRKC1C3RRKK | |||
HBD-4 | DEFB104 | Human | ELDRIC1GYGTARC2RKKC3RSQEYRIGRC2PNTYAC1C3LRK | |||
Cathelicidins | LL-37 | CAMP | Human | Skin cells, gastrointestinal cells, neutrophils and myeloid bone marrow cells | (18) | LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES |
mCRAMP | Cnlp | Murine | GLLRKGGEKIGEKLKKIGQKIKNFFQKLVPQPEQ | |||
Others | C18G | n/a | Synthetic | n/a | (253) | ALYKKLLKKLLKSAKKLG |
Numbers denote cysteine residues involved in disulfide bonds.
Abbreviations: HNP-1, human neutrophil defensin 1; HNP-2, human neutrophil defensin 2; HNP-3, human neutrophil defensin-3; HNP-4, human neutrophil defensin-4; HD-5, human α-defensin-5; HD-6, human α-defensin-6; HBD-1, human β-defensin 1, HBD-2, human β-defensin 2; HBD-3, human β-defensin-3; HBD-4, human β-defensin-4; LL-37, human cathelicidin; mCRAMP, murine cathelicidin-related peptides; C18G, α-helical peptide derived from the carboxy terminus of platelet factor IV. Modified from Gruenheid and Moual 2012 (229).